Spring wheel



- 1 1,616,734 R. W. WOOD I SPRING WHEEL Filed Jan. 28, 1926 Bonnier w. woonjor rrausascltrx,r mssouar; 4 g f i Application ma a-ma 28,19 6. 'SeI'iaI -No. 84,391. I

' This invention relates to certain improvements in" spring wheels and it is an object of the invention to provide a device of this kind constructed in a manner whereby it effectively takes up the shocks and jars incident to travel.

Another object of the invention is to pro vide a device of this kind comprising a hub and a rim substantially concentric thereto when the wheel is free of load and wherein spring spokes radiate from the hub and are operatively engagedv with the rim through the instrumentality of suitably located rock V with respect to the hub H.

levers.

The invention consists in the details of construction and in the combination and arrangement of the several parts of my irnproved spring wheel whereby certain important advantages are attained and the device rendered simpler. less expensive and otherwise more convenient and advantageous for use, as will be hereinafter more fullyset forth.

The novel features hereinafter be definitely claimed.

In order that my invention may better understood( be the 'companying drawings, wherein Figure 1 is a view partly in elevation and partly in section illustrating a spring wheel constructed in accordance with an embodiment of my invention;

Figure 2 is an enlarged fragmentary sece tional view taken substantially on the line 22 of Figure 1 Figure 3 is a view inperspective of one of the brackets and I rock levers herein emp oyed; 1

Figure 4: is a view partlyin section and partly in elevation illustrating the connection between a lever or arm and 2. spoke.

As disclosed in the accompanying drawings, R denotes the rim of a wheel structure ,whichis of channel with the side flanges Pivotally supported by the pins 1? between the flanges 1 at points spaced circumferentially of the rim R are the arms 2 of the substantially U- haped brackets 3. The intermediate or base portionsa of such brackets 3 have extending therefrom in the same general direction the levers or arms 5 off relatively short length.

Hingedly. connected, as at 6, to the outeror free end portion of each of the levers of my invention will sured in view of the areso arranged that each spoke has sub- I will now proceed to describe the same with reference to the ac- "the barrel10at opposite sides form in cross section 1 inwardly disposed.

or arms 5 is an outer end 1 portion of a spring. spoke 7 radiating from and suitably at tached to thehub H. The hub H comprises a circular member provided in one side face with a series of radial grooves 8 each of which is snugly engaged the inner end portion. of a spring spoke 7 Overlying the face of the hub H provided with. the grooves 8 is a plate 9' held in applied position through the instrumentality of'the bolts 9 or the like. This plate 9. when applied,

servesto effectively maintain the inner portions of the spokes '7 in proper assembly The tension ofthe spokes 7 is such to maintain the ,rim B substantially concentric to the hub H when the wheel in its entirety is freeof load. However; when the wheel is in transit, the. spokes 7 and the associated arms or levers 5 Wlll permit such relative movement of thehub H" and rim R toeffectivelv compensate for the shocks and jars incident to travel. This is further asfact that thespokes 7 v stantially the same weight in any position of the wheel.

The levers or arms 5 are also resilient or.-

Iofspring metal'so as to operate to advan tageto take care of lateral strain on curves or on a graded road.

7 As herein disclosed. the outer end portion I of each of the spokes 7 is provided with a laterally directed barrel 10 having its cen- .tral portion slotted. as at 11 in Figure'4.- -to receive the freeend portion of the coacting arm or lever 5. the associated pivot member G'being .directedthrough said barrel 10 and i a suitable opening .12 provided in the free endv portion of the rock armor lever K. The portions of the pivot member 6 within have freely mounted thereon the anti-fric tion sleeves 14.. f 1 Y L From the foregoing description it is thought tobe obvious that a spring wheel and it will also be obvious that my invenof a slot 119 .which'it may be assembled and operated,

tion is susceptible of some change and mod1- ples and spirit thereof and for thisreason I do not wish to be understood as limiting myself fication without departing from the'prin'ci- 1 0 to the precise arrangement and formation 10 with, rock levers of the several parts hereinshown in carrying out my invention in practice. except as hereinafter claimed.

I claim; c

A Wheel structure comprising a hub, a. rim of channel formation with the side flanges inwardly disposed, U-shaped brackets having side arms extending Within the channeled rim and pivotallv engaged thereextending from said brackets and disposed in the same general direction, spring spokes having their inner end portions secured to the hub, and means for pivotally connecting the outer extremities of the spokes to the outer extremities of the rock levers. I

In testimony whereof I hereunto 'afiix my signature.

ROBERT IVOOD. 

